# Dataviz Anti-Patterns

- Do not use rainbow palettes for ordered data.
- Do not use sequential ramps for unrelated categories.
- Do not encode critical differences with color only.
- Do not start a bar chart above zero unless the truncation is explicit and
  justified.
- Do not use dual axes when the visual comparison implies a relationship that
  is not in the data.
- Do not hide units, denominators, sample sizes, or time windows.
- Do not let chart decoration compete with marks, labels, and annotations.
- Do not use a dashboard card if a compact table is clearer.